1011312220311 has 12 divisors (see below), whose sum is σ = 1460863151592. Its totient is φ = 674171762256.

The previous prime is 1011312220309. The next prime is 1011312220339. The reversal of 1011312220311 is 1130222131101.

1011312220311 is a `hidden beast` number, since 1 + 0 + 1 + 131 + 2 + 220 + 311 = 666.

It is not a de Polignac number, because 1011312220311 - 2¹ = 1011312220309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011312220361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2855476 + ... + 3190041.

It is an arithmetic number, because the mean of its divisors is an integer number (121738595966).

Almost surely, 2^{1011312220311} is an apocalyptic number.

1011312220311 is a deficient number, since it is larger than the sum of its proper divisors (449550931281).

1011312220311 is a wasteful number, since it uses less digits than its factorization.

1011312220311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064110 (or 6064107 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1011312220311 its reverse (1130222131101), we get a palindrome (2141534351412).

The spelling of 1011312220311 in words is "one trillion, eleven billion, three hundred twelve million, two hundred twenty thousand, three hundred eleven".